Pa ystyriaeth y mae'r Gweinidog wedi'i rhoi i gerbydau sydd â nodweddion diogelwch megis osgoi gwrthdrawiad yn awtomatig, nad ydynt yn gweithio ar 20 mya neu lai, wrth gyflwyno'r gyfraith 20 mya?
Collision avoidance systems use technology such as sensors, cameras and algorithms to detect potential hazards and obstacles and can provide the driver with a warning, alert or intervention, to help avoid collisions.
The majority of such systems will operate as effectively at 20mph as 30mph. However, across vehicle manufacturers, collision avoidance systems do come with disclaimers and are additional support only, never a substitute for attentive driving. The time and space afforded by reduced speeds in built-up areas improves hazard awareness and reduces the risk of collisions.